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Unread 09-29-2013, 11:20 PM   #1
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Default I need help with my rear drum brake please!

Okay so I pressed my brake pedal while my left rear brake drum was removed. I had no idea of the consequences and now I"m dealing with some shoes that won't budge. They're expanded and it seems nearly impossible to put the drum back on! I read that I have to replace the Wheel cylinder, but how do I tell if it damaged and no longer usable? And what steps can I take to fix it, please help I'm going nuts trying to fix it!

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Unread 09-30-2013, 12:17 AM   #2
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Did you adjust the self adjuster out?
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Unread 09-30-2013, 01:19 AM   #3
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If you step on the brake pedal with the drum off the wheel cylinder pistons will travel too far and pop out of the cylinders and not go back in. This is why the drum won't go on.

You need to remove the shoes and hardware. You need to remove the piston that has popped out, one or both. You need to inspect the edges of the wheel cylinder cup for damage. Wash these parts with brake clean only. Use only brake assembly paste in the cylinder bore and cup. You will need to bleed the air out of the system at that wheel, as long as the master cylinder has not gone dry.
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Unread 09-30-2013, 10:39 AM   #4
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Oh wow, yeah i didn't read the first sentence. Pressing the pedal with the drum off is a bad idea, you will need to disassemble everything. I would replace the wheel cylinder, they're very cheap.

And, as car guy said, bleed the brakes.
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